The best I have ever seen is 27.5% at Party Poker through
www.pokersourceonline.com a party skin is just a site which used the same tables as party poker, but doesn't have the BBJ tables or the same promotions, tournaments etc. The best I have seen through a party skin is 25% or 26%. If you have no preference between party and a skin, I might do a promotion through PSO to get a free gift and rakeback through someone else at Eurobet or Empire.